Sonographic features of portal hypertension in Schistosomiasis Mansoni

Abstract

The diagnostic value of real-time sonography in the study of portal hypertension was assessed in 66 patients with hepatosplenic schistosomiasis mansoni, all with Symmers's fibrosis and esophageal varices. Seventy-one individuals without schistosomiasis were selected as controls. The inner diameters of the portal vessels were measured by sonography in all patients and controls: splenoportography was also performed in the schistosomal group. Intra-splenic pressure was over 30 cm of water in 44 of 60 patients with schistosomiasis. The upper limit of normality for portal vessel diameters was set through receiver operating characteristic curve at 12 mm for portal vein, 9 mm for splenic vein at splenic hilus, and 9 mm for superior mesenteric vein. The best discriminative vein for the diagnosis of portal hypertension was the splenic vein followed by the portal vein. A direct correlation was observed between the diameter of the splenic vein, measured by sonography, and the intra-splenic pressure. Except for the paraumbilical and mesenteric veins, more frequently identified by sonography, there was no statistical difference in the frequency of visualization of splanchnic vessels by sonography or splenoportography.

Hepatosplenic schistosomiasis in field-based studies: a combined clinical and sonographic definition

“…The presence of portosystemic collaterals were annotated (Domingues et al 1993). In all cases the opinion of the ultrasonographist in regard to the presence of intense periportal thickening was also considered (Pinto-Silva et al 1994).…”

Glomerulonephritis in schistosomiasis mansoni: a time to reappraise

“…In Figure 1, [21][22][23][24] . All patients had three negative parasitological stool examinations by the Kato-Katz technique and they also reported previous treatment for schistosomiasis ranging from 2 to 5 years before being enrolled in the present investigation.…”

Schistosoma mansoni: magnetic resonance analysis of liver fibrosis according to WHO patterns for ultrasound assessment of schistosomiasis-related morbidity

“…It is an indirect method of diagnosis and classification of the disease (Abdel-Latif et al 1981, Cerri et al 1984, Fataar et al 1984, Homeida et al 1988, Pinto-Silva et al 1994, Gerspacher-Lara et al 1998. US in hepatosplenic schistosomiasis shows characteristic alterations, such as echogenic thickening of the walls of the portal vein and its branches, corresponding to periportal fibrosis and echogenic enlargement of the gallbladder wall.…”